Diogenes of Apollonia. ii.
Xenophanes speaks thus:—
And no man knows distinctly anything,
And no man ever will.
Pyrrho. viii.
Democritus says, "But we know nothing really; for truth lies deep down."
Pyrrho. viii.
Euripides says,—
Who knows but that this life is really death,
And whether death is not what men call life?